Grinder for cultivator disks and tools.



PATENTED JUNE 19, 1906.

- G. B. GREENE. GRINDERFOR OULTIVATOR DISKS 'AND TOOLS.

APPLIUATION FILED 31-31912 1905.

3 SHEETS-SHEET'L I lnventoz;

film

PATENTED JUNE 1-9, 1906.

G. B". GREENE. GRINDER FOR GULTIVATOR DISKS AND TOOLS.

APPLIOATION FILED SEPT. 2 1905.

3 SHEETS-SHEET 2.

:IMQQJJ/ ZZZ A Witnesses:-

N5. 823,857. PATENTEDJUNE 19, 1906. G. B. GREENE. I GRINDER FOROULTIVATOR DISKS AND TOOLS.

APPLICATION FILED SEPT. 2, 1905.

'3 SHEETS-SHEET s.

m V; li l l l u u Witnesses:-

M", r I

T (ZZZ whom it may concern: 1

- GEORGE E. GREENE, ojr coU r AND, CALIFORNIA.

e Fii'No-E FOR ouLriVAToR DESKS AND Toots.

No. saastv. .1

Specification of Letters Patent.

Patented June 19, 1906.

I Application filed .eptcznher 2, 1905'. Serial No. 276,812.-

Beit known that I, GEoEeE B. GREENE, a

citizen of the United States, residing at Courtland, in .the county ofSacramento and State of California, have invented new and usefulImprovements in Grinders for Cultivator Disks and Tools, of which thefollowing is a specification. I

My inventionrelates to grmdingnachmes,

and especially to an apparatus for grinding and sharpenin disks ofcultivators, disk plows, and the ike.

The concavo-convex disks such as are employed for cultivating the soilbecome so dull by continued use asto needregrindingor sharpening fromtime totimc. These disks are usually arranged'in gangs fixed-to shaftswhich are rotatably mountedlin brackets or standards carried by the"machine. The mounting ofa disk onitsshaft is such that it is seldomexactly 'true,.and when the shaftis disk is present.

turned a more or less noticeable wabble to the Iheref it is attempted togrind the eripherai edges of a disk by rotating the atter'on-its axles,it is necessary to make some provision by which the rinder will actproperly'upoh the surface of t e disk and accommodate itselfautomatically to the f wabble of the di k? .3

in whichmachinaevery necessary adjustment is made or arranged forwherebythe grinders may accem1nodatethemselves to every ineq uality.;, in the;revolution of the tion of same.

, substance suitable for the ur ose.

disks, and in. which machine the disks are. given a rotatative movementcoordinate with the actlon of the grinders, and also which machine isadapted to grind with equal facility disks of different'sizes.

The invention consists of the parts and the construction andthe'combination of parts, as hereinafter more fiilly described andclaimed, having reference to the accompanying drawings, in which IFigure 1 is a plan 'view of my machine. Fig. 2 is'an elevation of thesame. Fig. 3 is a plan of the grinder-shaft carriage. Fig. 4 is afrontview of same. Fig. 5 is a side eleva- A represents the grinders, whichmay be of carborundum, emery, or any other abrasive These grinders aremounted upon s 1a ts, as at 2, of which there may be as many as desired,

standing approximately parallel with each I other and turnable injournal boxes or bear-.

ings, as at 3 and 3, whereby the grinders may be disposed in a positionconvenient to grind the disks i. The boxes 3 3 are mounted' on suitablecarriages (hereinafter to be described) on the rod 5, which isadjustably mounted on frame 6 of the machine.

.qlisks may be mounted on individual shafts win the particular machinewith which they These are ordinarily identified as a disk plow or theymay be arranged in gangs of two or more disks fixed upon a singleshaft,-"as in cultivators and the like.

,My machine is designed to grindjavrth- ..cqual facility the single diskof disk plows or the multiple disks of cultivators and to grind disks ofdifferent sizes. disks are usually fixed to a shaft which is Incultivators' the suitably journaled in brackets or standards carried bythe frame of the cultivator. The disks may be removed from thecultivator by detaching the standards from the cultivatorframe. Mymachine is constructed to permit the disks to be supported directly upontheir own shafts and their own standards during the-grinding rocess andto ermit of the disks being quic ily' adjusted relative to the grinders.

The object of'my'invention is to providea, simple practical machine bywhich the disks" may be evenly ground on their own'axis, andin suitableguides in the frame 6 and disposed relative to the grinders The bracketsor' standards in which the disk-shaft 8 is journal'ed are stood on thecarrier and bolted or otherwise temporarily secured thereto with thedisks pointing upward. The disk-shaft is coupled to a driving-shaft 9 bymeans of a socket-piece or chuck 10. The shaft 9 car ries the pulley 11,through which power is transmitted to revolve the disks to present allportions of their ed gcs to the grinders A.

-The grinding shafts 2 have fixed upon them the friction-rollers 12which are adapted to contact with corresponding frictiondisks 13slidably mounted on the shaft 14. As here shown, theshaft' 1e has afeatherway, and the disks 13 have each a feather to fit thisfeather-way, and each disk is supported on the side opposite to itsroller 12 by a s ring 15 and an adjustable collar 16. The disks 13,1ikethe carriages of the shafts 2, are

adjustable to suit the conditions and the dis 7 1s a shelf or carriervertically adjustable in the machine to have the grinders operate in Iand third of the disks grinders and their carriages so that the grind iers'will operate upon the second and north of the disks, or in any othersuitable relation.

The shaft 14 is supported so have it limited lengthwise movement in itsboxes and carries respective lived and loose eollars 17 18, betweenwhich collars are arranged it series of sntifrietional balls 19. Aspringlever 20, which. is fulerumed at 20, engnges the loose collar 18and is adopted to he operated to move the shaft and the disks 1.3 tooe'use the letter to press with greater or less forcenpon theroller-s12. The splin -lever 20 is operated from the hand-lever 21,which is i'nlcrnnied, as at The two levers are connected by a link 23,ene the lever :31 is held in any suitable position by means as the oewl2st engaging the reel: J, The iii iever 26 provides yielding henring endof the shalt l4 and allows n limited lengthwise movement of the shaft,while the springs 15 permit the drive-disks 13 to hm :1 limited slidingmovement on the shaft quire independent of the letter.

.l ho adjustments of the eolhirs 1e and the springs and the operation ofthe lever .21 are such as to press the drive-disks 13 ngninst the roller12 with just the proper frictional contnot to properly drive thegrinders. Enos grinding-shaft 2 is so mounted that it is enpnble of amovement in any direotimi, so the" the grinders may move to and from ndish either laterally or in a. vertical plane. 'lhese variousadjustments for the grinder and its shalt are provided by the followingmeans: The rear box 3 is adopted to swivel shoot it substantiallyvertieel axis 27 26, turnnhlo about a horizontal axis, which letter issup ported upon an angle-plate 28. The latter is odjnstnhly' secured toit her or plate 29. The her 29 is pivoted at C (l to on underneathangle-plate 31, which latter is pivoted on :1 horizontal axis carried byit suitable hearing or T 32, which is tnrnnhlo and slidshle on the lmrThe forward end of plnte 125) is pivot idly connected by n link 33% tono merit-plate 5' ,whioh letter is pivoted to osevond l in; or "4 35,which is turnzihlo :md shdnhle on the bar 5. Hy loosening the nuts I'Zii37 on the pivot-bolts which connect the link 53 to plates 2i) and illthe henrings 32 35 mnyhe sepzunted more or less, as desired, toe:n'respondingly tilt the plate .29 mid shnlt 2 relative to thesiipportinwlmr 5. Shall 2 is l'ree to slide in its lronl. hox ii Thelatter is mounted on n hinged slnndnrd 3%, which is movable in o plnnotransverse lo plate '3) to permit of n non-u! movement ol the grinderrelative to n (:ultivntor-disk. 'lho uppei'emi ol' the stnndnrd isnormnll hold in n :-ml st:mtinll v verti onl position liy n brow-rodIll) and the springs il), the lower end ol lhe rod ill) l)ill looselysupported nt 4i and the springs 10 living or end then to move the lsnilnhle ranged one on each ol' the standard with stops the oou ends ofThe i The to; on oi the springs may on regulated h suitable in one, asit turnbuckle e2. Thus it is seen that the standard. lib is permitted :1limited r elriing movement on it hinge and .olo'i g rod 3) noi I n thesprii 40} the hitter li'n'mino :i re: Hi ipor, desired for the standsleeves 32 3.3 he shaft 5 permit the nested ports to he t: i about therod 5, and thus tilted up entir out oi the way to allow the disksn'hieh. ore to be ground to he moved along; on the onrri-er T or to he.inserted into or taken out of the ma spi in chine. 'lhese sleeves orhenrii s 31: 3- being i'reoly slid e on the rod permit rho grinder-shaltand i1 mrringe to he moved l *rinder to proper i-oim-ide i :iieohoin hto he ,u ronnd. l orwnrd do'enor eni'riii ililllll 1": l1. From lheframe (5- l I :-i sens turning; in to-- spemive Sd-lYildlillS if} onframe screws hi and the mus l7; I 3 .HHl 5 to hr ndpisled hoih H hori'aill ord r lo elieet 4'. slill m re delimit-.1ndioslmentoi to permit*neln adjusted rein Hill A iimllr.

und r i wort mgr. I. i \lolion liiinpnr '2 mid rom any soil-- iihlesource of power nod hy :n zipproprizmr connections. l hove h wn a: pow rshell 4?, Cufl' ;l:1, 1 :1, idler -28, onion letter is i-onmit'ied to apu on shalt ll l 2 :1 hell, ill, Shell l-ieor; o r-mxond pollox in),from whivh motion is 1'1 snorted '10:? !llli" 'ier slnalt 51 h the heli5;; From sholt M power is transmitted to pulley ll on shall .l hy thehell; 53. Thus ii is seen lhnl holh the grinders end the disks to beground are turned from the some soorve of ower. ond l z-uiitzihlypiopoi'li he the severe! (ill\'- lilo eol iolowd at :1

i he rotation oi umioi'siood lhoi ll :ind il may goers drh. t .iconvenient lhe grind s. v 3 power to drive lrnnsi'niiled h m. by hand ormy moior The operation ol 2hr derive is as follows: The disk or disks toho ground are snitolilv' sr-i-ured on the vnrri-or 7 nod oIliH'1lud\Kllll the shalt E 'lhe !ili:ll :nljnstmem ol the ear ier 7 is ill'erledhr soilnlilo nouns, us shown nt lo lirimg {he upper edge oi tho dishlnlo proper operdive position rolnlivi; to ii grinder. 'lho voi'rinoel'or llH' grinder is shiilod l(*Il 'lll\(iJ-;( o 15in m! C- inio pro erposit ion, nnd sin-h odi 1mvnlmollhesewrnl memliei's oi lho i'ziri'ion inrv mini c lit to rouse the grinder to present itself properly to theedge of the disk. Thus by loosening the nuts 36 3? the bearings 32 35may be separated more or less, which will cause the plate 29 to 5 turnon its fulcrum 30 and incline the plate different types or to diskshaving different amounts of dish. By loosening the pivot-v bolt 28 ofthe angle 28 the grinder-shaft may be still further tilted and advancedor retracted. The proper adjustment of the bear ings 32 35 having beenmade, the nuts 36 37 are tightened, the proper adjustments of thevarious angle-plates 28, 31, and 34 having been made to conform totheposition of alinement of the shaft 2. Any adjustment of the grinderfurther than afforded by the bar 43 maybe effected by theadjusting-screw 46. A disk 13, corresponding to this grinder, is thenmovetLup into contact with the roller 12 and the spring 15 suitablycompressed by the collar 16 and the latter loclred to-ftli'e shaft ,14.The leverZl is then moved to operate through the yielding spring-lever20 to shift the shaft 6 in the direction of the roller 12 and cause thedrive-disk to press against the roller with sufficient frictionalcontact to d lve the grinder properly. The shafts 14 and 9 being set inmotion, the abrading force of the grinder may 5 be varied by the propermanipulation of the lever 21. The swivel connections 26 and 27 of therear bearing 37 and the resiliently-su 'iported hinged standard 38,which carries the front bearing 3 admit of a universal move- 40 ment ofthe grinder toand from the disk in every direction, so that the grinderacts around the entire circumference of the disk,

' with a substantial uniform pressure andwith uniformityof resultirrespective of the irregul'arities of revolution or the amount ofWabblo of the disltbeing ground.

It is possible that various modifications in my invention may be madeWithout dcpart-' ing from the principle thereof, and 1 do notwish to beunderstood limiting myself tothe specific construction herein shown anddescribed. I

.llaving thus described my invention, what I claim, and desire to secureby Letters Pat ent, is

1. In a disk-grinding machine, the combi nation of means for supportingand for revolving a disk, a grinder having a movement laterally andvertically vwith respect to the disk, means to revolve the grinder, andmeans to effect sa d lateral and vertical movement and to maintain thegrinder in operative contact with the disk.

2. in a disk-grinding machine, agrinder- 6 5 shaft, a swivelly-inountedbox for one end of I the shaft, a grinder on the other end of the shaft,a spring-supported box for the shaft between its ends, and means to.revolve the shaft.

3. In a disk-grinding machine, a grindershaft, a swivelly-mounted boxfor one end of the shaft, a sprin -supported box for the shaft betweenits ends, means to revolve the shaft, and. men s to vary the tilt of theshaft.

4. In a disk; vinding machine, the'eombination ofa sup ort, a carriagerockable on said support, a grinder-shaft mounted on said carriage tohave a swiveled movement sidewise and vertically, a grinder on saidshaft, and means to rotate the shaft.

5. In a disk-grinding machine, the combination of a support, a carriagerockable on said support, a grinder-shaft mounted on said carriage tohave a swiveled movement sidewise and vertically, a grinder on saidshaft, and means to rotate the shaft, said car-- riage having also alateral sliding movement on its support.

6. In a grinding-machine, the combination of a fulcrum-shaft, twosleeves turnable thereon. and one slid able on the shaft with respect tothe other, boxes carried by one sleeve, a grinder-shaft supported insaid boxes, a grinder 111 the grindenshaft, and articulated connectionsbetween the two sleeves to permit a change in. the inclination of thegrinden shaft with respect to said fulcrum-shaft, and means to revolvethe grinder-shaft.

7. in a grinding-machine, the combination of a ful(-run'ishaft, twosleeves turnable thereon, and one slidable on thcushaft with respect tothe'other, boxes carried by one sleeve, a grinder-shaft supported insaid boxes, a grinder in the grinder-shaft, and articulated connectionsbetween the two sleeves to permit a change in the inclination of thegrindersha'ft with. respect to said fulcrumshaft, and means to revolvethe grinder-shaft irrespective of said changes iii-inclination.

8. In a grindhag-machine, the combination of a fulcrinn-shaft, twosleeves turnable thereon and one movable to and from the other,swivelly-mounted boxes carried by one sleeve, a grinder-shaft supportedin said boxes, a grinder on said shaft, means to revolve said shaft, andarticulated connections between the boxes to allow of a change ininclination of the grinder-shaft with respect to said fulcrum-shaft.

9. in a grinding-machinc, a rotary grinder, a shaft therefor, a swiveledbearing for one end of said shaft and a spring-support hearing for theother end of the shaft to permit the latter to have a horizontal andvertical movement, and means to operate the shaft,

10. in a grinding-machino, a grinder, a

shaft therefor, boxes for said shaft, a resilien-t support for one ofsaid boxes, and means to support the other box to pern'nt t to be rockedH1 either horizontal or vertical planes.

